Showing 33 open source projects for "support system java"

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  • 1
    bitcoinj

    bitcoinj

    A library for working with Bitcoin

    ...A wallet class with encryption, fee calculation, multi-signing, deterministic key derivation, pluggable coin selection/coin control, extensions support and event listeners that let you stay up to date with changes in your balance. Experimental full verification mode, which does the same verification work as Bitcoin Core. In this mode, the unspent transaction output set (UTXO set) is calculated.
    Downloads: 9 This Week
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  • 2
    Bisq

    Bisq

    A decentralized bitcoin exchange network

    Buy and sell bitcoin for fiat (or other cryptocurrencies) privately and securely using Bisq's peer-to-peer network and open-source desktop software. No registration is required. Get started in minutes. No need to wait for approval from a central authority. Trading takes place on a global P2P network of users running Bisq on their own machines. Bisq never holds your funds. Deposits held in 2-of-2 multi-sig wallets encourage safe, successful trades. Your data is stored locally on disk, and is...
    Downloads: 14 This Week
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  • 3
    Sparrow Wallet

    Sparrow Wallet

    Desktop Bitcoin Wallet focused on security and privacy

    Sparrow Wallet is an open-source, desktop-focused Bitcoin wallet designed for users who value complete control, security, and privacy when managing their Bitcoin funds. It provides a rich graphical interface that exposes Bitcoin’s underlying UTXO model rather than hiding it behind abstractions, helping users understand every input, output, and fee involved in transactions. Sparrow supports advanced workflows such as Partially Signed Bitcoin Transactions (PSBT), multisignature setups,...
    Downloads: 15 This Week
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  • 4
    Hyperledger Fabric

    Hyperledger Fabric

    Distributed ledger framework for developing solutions and applications

    Hyperledger Fabric is an enterprise-grade permissioned distributed ledger framework for developing solutions and applications. Its modular and versatile design satisfies a broad range of industry use cases. It offers a unique approach to consensus that enables performance at scale while preserving privacy. High-performance, secure, permissioned blockchain network. Code written in Go, chaincode (smart contracts) in Go, Javascript, or Java, SDKs in Node.js, Java, Go, REST and Python....
    Downloads: 14 This Week
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  • 5
    Besu Ethereum Client

    Besu Ethereum Client

    An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client

    ...Instructions for how to get started with developing on the Besu codebase. Please also read the wiki for more details on how to submit a pull request (PR). Besu is an Apache 2.0 licensed, MainNet compatible, Ethereum client written in Java. Participation in private networks is typically restricted in some way, so the volume of traffic is much lower than on Mainnet, resulting in lower system requirements. Depending on your environment and network setup, the minimum Java Virtual Machine (JVM) memory requirement for private networks is 4 GB.
    Downloads: 5 This Week
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  • 6
    Crypto Trading Bot

    Crypto Trading Bot

    Cryptocurrency trading bot in javascript for Bitfinex

    Crypto Trading Bot is a JavaScript cryptocurrency trading bot that connects to multiple exchanges through the CCXT ecosystem. It is designed to experiment with automated trading logic across exchanges such as Bitfinex, BitMEX, Binance, and Bybit. The bot supports multi-pair operation, technical indicators, configurable strategies, and exchange order workflows. It aims to go beyond basic buy-and-sell signal bots by supporting more practical trading mechanics such as stop-loss or...
    Downloads: 6 This Week
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  • 7
    Binance Trading Bot

    Binance Trading Bot

    Automated Binance trading bot, trade multiple cryptocurrencies

    Automated Binance trading bot. Trade multiple cryptocurrencies. Buy low/sell high with Grid Trading. Integrated with TradingView technical analysis. This bot is using the concept of trailing buy/sell order which allows following the price fall/rise. Trailing Stop Orders About Trailing Stop Orders Concept you can find at Binance Official document. Place orders at a fixed value or percentage when the price changes. Using this feature you can buy at the lowest possible price when buying down...
    Downloads: 17 This Week
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  • 8
    Fedimint

    Fedimint

    Federated E-Cash Mint

    Fedimint is a modular open-source implementation of federated Chaumian ecash designed to enable community-controlled Bitcoin custody and privacy-enhanced payments. It allows groups of users to collectively manage Bitcoin in a trust-minimized manner while enabling fast, anonymous, and scalable transactions through blind signatures. Built with extensibility and modularity in mind, Fedimint aims to serve as the core of community custody systems like Fedi and future federated finance...
    Downloads: 14 This Week
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  • 9
    BNB Chain

    BNB Chain

    A Binance Smart Chain client based on the go-ethereum fork

    ...So you may see many toolings, binaries and also docs are based on Ethereum ones, such as the name “geth”. But from that baseline of EVM compatible, Binance Smart Chain introduces a system of 21 validators with Proof of Staked Authority (PoSA) consensus that can support short block time and lower fees. The most bonded validator candidates of staking will become validators and produce blocks.
    Downloads: 12 This Week
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  • 10
    Monero

    Monero

    Secure, Private Digital Currency

    Monero is a secure, private, untraceable cryptocurrency. It is decentralized-- dependent on a distributed peer-to-peer consensus network where every transaction is cryptographically secured. With Monero you are your own bank, you control your funds and can spend safely. No one else can see your balances, track your transfers or any other transactions unless you allow them to. Monero uses ring signatures, ring confidential transactions, and stealth addresses making it absolutely private...
    Downloads: 2 This Week
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  • 11
    Eclair

    Eclair

    A scala implementation of the Lightning Network

    Eclair (French for Lightning) is a Scala implementation of the Lightning Network. This software follows the Lightning Network Specifications (BOLTs). Other implementations include c-lightning, lnd, electrum, and rust-lightning. Eclair offers a feature-rich HTTP API that enables application developers to easily integrate. Eclair's JSON API should NOT be accessible from the outside world (similarly to Bitcoin Core API). Eclair requires Bitcoin Core 0.20.1 or 0.21.1. (other versions of Bitcoin...
    Downloads: 7 This Week
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  • 12
    x402

    x402

    A payments protocol for the internet. Built on HTTP

    x402 is an open, HTTP-native payment protocol designed to enable programmatic, real-time payments directly within standard web requests. It repurposes the long-unused HTTP 402 “Payment Required” status code to allow servers to request payment before delivering content or API responses. The protocol supports multiple payment networks, including blockchain-based systems and fiat-compatible facilitators, making it flexible and network-agnostic. It is particularly suited for machine-to-machine...
    Downloads: 10 This Week
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  • 13
    AirGap Wallet

    AirGap Wallet

    The AirGap Wallet is installed on an everyday smartphone

    AirGap is a crypto wallet system that lets you secure cypto assets with one secret on an offline device. The AirGap Vault application is installed on a dedicated device that has no connection to any network, thus it is air gapped. The AirGap Wallet is installed on your everyday smartphone. Protect your crypto and store your private keys offline. It’s time to set up your safe place for your coins and get rewards.
    Downloads: 8 This Week
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  • 14
    Qtum

    Qtum

    Qtum Core Wallet

    Qtum is a decentralized blockchain project built on Bitcoin's UTXO model, with support for Ethereum Virtual Machine-based smart contracts, and secured by a proof of stake consensus model. It achieves this through the revolutionary Account Abstraction Layer which allows the EVM to communicate with Qtum's Bitcoin-like UTXO blockchain. Welcome to the Qtum Ignition Main Network. This is the main network where the tokens hold value and should be guarded very carefully.
    Downloads: 3 This Week
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  • 15
    Decred

    Decred

    Decred daemon in Go (golang)

    dcrd is the full-node implementation of Decred, a hybrid proof-of-work/proof-of-stake cryptocurrency focused on decentralized governance, long-term sustainability, and robust network security. Written in Go, dcrd provides all the core consensus, networking, and validation logic necessary for Decred nodes to participate in the network. It plays a critical role in enforcing consensus rules, managing peer connections, and enabling advanced features like on-chain voting and self-funding via a...
    Downloads: 0 This Week
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  • 16
    Open Crypto Tracker

    Open Crypto Tracker

    Bitcoin Alts portfolio tracker, email / text / alexa / telegram alerts

    100% FREE / open source / PRIVATE crypto portfolio tracker. Email / text / alexa / telegram price alerts / charts, mining calcs, leverage / gain / loss / balance stats, news feeds +more. Privately track Bitcoin / Ethereum / unlimited crypto. Customize as many assets / markets / alerts / charts as you want. Over 50 Exchanges / 40 Pairings Supported (list at bottom of README.txt): https://tinyurl.com/ct-readme Unlimited Assets Supported (on supported exchanges). Demo:...
    Downloads: 25 This Week
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  • 17
    DDN

    DDN

    DDN, Data Delivery Network, a next generation blockchain system

    ...Multi industry, currently covering copyright protection, electronic medicine, food safety, anti-counterfeiting traceability and other fields. Visual deployment, you can customize your own blockchain by clicking the mouse and publish it to the peer server. Docker, tod support mainstream deployment methods such as docker.
    Downloads: 2 This Week
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  • 18
    Slideshow Crypto Ticker

    Slideshow Crypto Ticker

    Real Time Slideshow Crypto Price Ticker For Raspberry Pi LCD Screens

    ...Supports running in "slideshow mode", to show all the markets you want. Supports CoinGecko / Binance / Coinbase Pro / Kraken / Kucoin / Bitstamp / Bitfinex / HitBTC / OKex / Gate.io exchange markets (more market support coming in the future). 3.5" LCD Demo: https://www.youtube.com/watch?v=dXAhs8HXCn4 7" LCD Demo: https://www.youtube.com/watch?v=fZ98Fm6ZkW8 Developed on a Raspi v3 B+, with these screens / cases: https://smile.amazon.com/gp/product/B07N38B86S (no mods) https://smile.amazon.com/gp/product/B08Q34RS7M (Noctua fan crazy-glue-mounted, + Noctua fan speed controller outside case, see README.txt) Debian-based Auto-Install Commands (use "Terminal" app in your system menu, or over remote SSH): wget --no-cache -O TICKER-INSTALL.bash https://tinyurl.com/install-crypto-ticker chmod +x TICKER-INSTALL.bash sudo ....
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    Downloads: 1 This Week
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  • 19
    JesseAi

    JesseAi

    Advanced AI-Powered Python Crypto Trading Bot 2026 - Free Backtesting

    Jesse Bot: Advanced AI-Powered Python Best Crypto Trading Bot & Framework (2026) Jesse Bot — free open-source Python crypto trading bot & robust framework for cryptocurrency markets. Build, backtest, AI-optimize, and execute precise automated strategies with zero look-ahead bias. Use JesseGPT — built-in AI assistant — to write, debug, and refine strategies effortlessly, even as a beginner. Secure live trading on Binance, Bybit & major exchanges, full risk management, leverage/futures...
    Downloads: 0 This Week
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  • 20
    PUTinCoin

    PUTinCoin

    This is the REAL PutinCoin cryptocurrency project!

    wave Hello! This is the REAL PutinCoin cryptocurrency project! We are developing a dedicated fan cryptocurrency for Russia, the PUTinCoin (PUT). Our coin shows the, that the blockchain connects people and does not seperate them and that cooperation is always better then separation. If you like to support, pls. write to admin@putincoin.org or contribute to the open repositories. eyes We are interested in Cryptocurrencies, Blockchain-Technology and Russia! revolving_hearts We're looking...
    Downloads: 2 This Week
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  • 21
    libertyOS

    libertyOS

    The worlds first Blockchain Operating System

    LibertyOS is the first Blockchain Operating System. Heavily focused on user privacy, security, speed, stability and accessibility, LibertyOS combines a novel token model with a blockchain-centric advertising platform to radically transform user experiences. Users get smoother, faster, cleaner, secure, data-safe systems, and can earn cash by opting in to pre-screened, anonymous, non-intrusive ads. Advertisers, publishers receive better ad reporting and increased revenue shares. Built by...
    Downloads: 8 This Week
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  • 22
    Decentralized Internet

    Decentralized Internet

    SDK for building decentralized web and distributed computing projects

    This project was created in order to support a new internet. One that is more open, free, and censorship-resistant in comparison to the old internet. An internet that eventually wouldn't need to rely on telecom towers, an outdated grid, or all these other "old school" forms of tech. We believe P2P compatibility is an important part of the future of the net. Grid Computing also plays a role in having a better means of transferring information in a speedy, more cost-efficient and reliable manner.
    Downloads: 0 This Week
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  • 23
    exchange-core

    exchange-core

    Ultra-fast matching engine written in Java based on LMAX Disruptor

    ...Cancel operation takes ~0.7µs, placing new order ~1.0µs. Disk journaling and journal replay support, state snapshots (serialization) and restore operations, LZ4 compression. Lock-free and contention-free order matching and risk control algorithms. Matching engine and risk control operations are atomic and deterministic.
    Downloads: 1 This Week
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  • 24
    BOSS V01-LTS gnome desktop

    BOSS V01-LTS gnome desktop

    Lightweight Blockchain dedicated OS

    Blockchain Operative System Series BOSS is a new Linux distribution based on ubuntu core with important changes, highly improved security and the default incorporation of blockchain services and support for cryptocurrencies.It has been more than a decade since the physical birth of cryptocurrencies, although the idea is over 50 years old. The future will undoubtedly be governed by blockchain systems and operative systems must to be ready for this changes.
    Downloads: 1 This Week
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  • 25

    BOSS1

    BOSS operative system is a new Linux distribution based on Ubuntu.

    Our operating system has been designed and built on an ubuntu core consisting of an interesting combination of security, manageability, speed and performance. It can be used on any x64 X86 machine simply after installation. https://bitcointalk.org/index.php?topic=5251621. https://bitcointalk.org/index.php?topic=5250388. Feel the most recent news on our bitcointalk topics or join our discord for fast support and join the community o discord server https://discord.gg/3fbUefN
    Downloads: 0 This Week
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